Simple 2D graphics on OSX

What's a simple way to do simple 2D graphics on OSX?

Simple, as in "10 HGR2: HPLOT ...", not 'simple' as in 600-line framework wrappers &| D0InG 1T tH3 CyB3RsPaC3 W@Y dRaGgInG 3D gUi W1Dg3tS aR0U|\|D iN @N INt3rFaC3 BuIlD3R.

Suggestions using the supplied interpreted languages are fine (Perl, Python, etc.)

>>7
"A or B" doesn't really imply in English that "A and B together" is an acceptible choice (like the logical operation). "You can have ice-cream or the mud-cake."